1.1 To classify plants according to their characteristics

Natural sciences

Ecosystems and the environmental balance

Educator section

Memorandum

Assignment 2:

1. petiole

2. leaf-base

3. leaf margin

4. lamina (leaf-blade)

5. veining

Assignment 3:

1. net-like veins

2. net-like veins

3. parallel veins

4. net-like veins

5. net-like veins

6. net-like veins

7. parallel veins

Leaner section

Content

Activity: to classify plants according to their characteristics [lo 2.2]

There are many thousands of species of plants and animals on the earth and they all differ from one another. When plants and animals with the same characteristics are grouped together (classified), it is easier to study them.

Why is it important to also carry out the classification of plants and animals as part of ecological studies?

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The following table indicates how plants can be classified according to their external characteristics.

(i) Classification of plants on the basis of their leaves

Plants can be classified according to their leaves.

Net-like veins

The flat section of the leaf is called the leaf-blade (lamina). It is attached to the stem by means of a leaf-stalk (petiole). The petiole runs into the vein to form the main vein. The main vein branches and re-branches into lateral veins, forming a network of veins in the lamina. This is known as net-like (reticulated) veins.

Assignment 2:

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Assignment 3:

Study the sketch below and classify the leaves of the following plants as having net-like or parallel veins.

PEER ASSESSMENT:

Assessment

Learning Outcome 2: The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

Assessment Standard 2.2: We know this when the learner categorises information.